爱词霸英语   汉语   手机版   软件版下载 | English
每日一句:正在加载...
1.High boron alloy steel containing rare earth, titanium and nitrogen is used to produce the crusher hammer, its abrasion resistance is 220% - 250% higher than that of high manganese steel.
含稀土 -钛-氮的高硼合金钢用于制造破碎机锤头,使用安全可靠,耐磨性比高锰钢提高220％-250％,且生产成本相当。收藏指正
2.The distribution feature is that in calico purple soil rice and corn are short of zinc,in acid arenaceous soil wheat is short of molybdenum,in gravel yellow soil cole and orange are short of boron,in gles tide soil wheat is short of manganese.
分布特征是钙质紫色土水稻、玉米缺锌 ,酸性砂质土小麦缺钼 ,砾质黄壤油菜、柑桔缺硼 ,潜育化潮土小麦缺锰。收藏指正
3.It mainly includes new-type cement and wall-building material with coal gangue, industrial waste and fly ash as the raw material; neody mi um -iron -boron material, nano-material, fire -resistance material, kaolin earth material, high-performance ceramic and fiber material, magnetic material, silicon-manganese alloy, and other nonferrous metal materials, along with production technologies of green environmental, clean materials and so on.
以煤矸石、粉煤灰、工业废渣为原料的新型水泥和新型墙体材料、钕铁硼材料、纳米材料、耐火材料、高岭土材料、高性能陶瓷和纤维材料、磁性材料、硅锰合金等有色金属新材料，以及绿色环保、清洁材料的生产技术等。收藏指正
尝试查询